BirdAnalyst
Species · Connecticut · BBS 2025 Release · 1966–2024

House Finch Population Trend in Connecticut

All statesGeneralists

House Finch in Connecticut has surged: up 568% on the route-weighted index since 1969.

+568%Since 1969
20Routes In State
55Years

Notable House Finch Trends in Connecticut

long arc increasecomputed index

House Finch has surged in Connecticut: up 568% on the route-weighted index since 1969.

House Finch Population Forecast in Connecticut

If the recent trend holds, House Finch in Connecticut is projected to rise about 10% by 2029 — from 13 in 2024 to a central estimate of 14 (95% range 0.00–31). A 5-year backtest shows a typical error of ±45.6%, with 100% of held-out values landing inside the 95% band.

+10%Change by 2029
14Projected 2029 index
0.00–3195% range
±45.6%Backtest error
19672029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
2025140.0031
2026140.0031
2027140.0031
2028140.0031
2029140.0031

House Finch Survey Routes in Connecticut

Routes recording House Finch in Connecticut.
Uncasville4920241977
New Hartford2619871979
Willimantic2520181976
E Hartland2119921978
Warren1920111978
Danbury1820231968
Mid Haddam1820241978
Southington1520241975
Westbrook1420241973
Mystic1320231974
Buckingham1320221976
No Woodbury920241972
Long Hill820191972
Sherman620191978
Greenwich420181967
Granby420241988
Woodstock 2320242017
Warren 2320242012
Woodstock120071984
New Hartford120211994

House Finch Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradodelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.